Am I reading this right? What am I missing?

[elvisAZ]

switching to Lithium as old batteries are beyond their life expectancy. Saw this one on Amazon.

https://www.amazon.com/dp/B0BXSSHW5V...lig_dp_it&th=1

Says it has 300 Ah, 12V, and is the dimensions of a deep cycle battery, roughly. The problem I have had is that most Li batts are 8.5-9" deep, and that is the size of my external battery tray on my GeoPro TT.
This triples my juice and seems drop-in ready.
Input from the smarter guys??
Thanks!

[Aussieguy]

I have 200 ah and can camp 3 days
Standard 12v stuff and a 12v fridge
No inverter so usage is moderate and not a lot of stress on the system

As with a lot of these batteries …. This one is fairly new
Not a lot of Historical reviews over time
the write up description is full of Chinese /English typical stuff

Be prepared to
A ) seller probably will want a arm and a leg to get warranty work done shipping etc
B) a DIY person typically can replace a BMS if it goes bad
C) your buying cheap so don’t expect a lot of support

I would get a battery with Bluetooth. Much more detail of the health of the battery

May not fit standard battery box you may have to modify the box or get larger

I decided 2 smaller batteries was preferable so if something went wrong with one can still have power from the other one

[Ham_Bone]

I just read some favorable reviews for that battery on another DIY solar forum. Members there are having a good experience with them. The voltage/capacity meter is a nice touch.